Sound-proof material and process for production thereof, sound-proof molding, and sound insulation method
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04B-001/84
F02B-077/13
G10K-011/168
G10K-015/00
E04B-001/82
F02B-077/11
G10K-011/16
출원번호
US-0982110
(2012-01-26)
등록번호
US-9093060
(2015-07-28)
우선권정보
JP-2011-014515 (2011-01-26)
국제출원번호
PCT/JP2012/051691
(2012-01-26)
§371/§102 date
20131004
(20131004)
국제공개번호
WO2012/102345
(2012-08-02)
발명자
/ 주소
Mori, Tadashi
Niwa, Takahiro
Yoshihara, Masaki
Kondoh, Motonori
Arimizu, Kaname
출원인 / 주소
NICHIAS CORPORATION
대리인 / 주소
Nixon & Vanderhye P.C.
인용정보
피인용 횟수 :
0인용 특허 :
20
초록▼
The present invention relates to a sound-proof material containing a first sound-absorbing material disposed facing a sound source, a first soft sound-insulating layer laminated on a face of the first sound-absorbing material opposite to the sound source and having an air permeability measured in ac
The present invention relates to a sound-proof material containing a first sound-absorbing material disposed facing a sound source, a first soft sound-insulating layer laminated on a face of the first sound-absorbing material opposite to the sound source and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower, a second sound-absorbing material laminated on the first soft sound-insulating layer, and a second soft sound-insulating layer laminated on the second sound-absorbing material and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower and a Young's modulus measured in accordance with JIS K7127 greater than or equal to five times that of the first soft sound-insulating layer, in which at least the second soft sound-insulating layer is partially or entirely bonded to the second sound-absorbing material.
대표청구항▼
1. A sound-proof material comprising: a first sound-absorbing material disposed facing a sound source;a first soft sound-insulating layer laminated on a face of the first sound-absorbing material opposite to the sound source, and having an air permeability measured in accordance with JIS L1018 of 10
1. A sound-proof material comprising: a first sound-absorbing material disposed facing a sound source;a first soft sound-insulating layer laminated on a face of the first sound-absorbing material opposite to the sound source, and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower;a second sound-absorbing material laminated on the first soft sound-insulating layer; anda second soft sound-insulating layer laminated on the second sound-absorbing material, and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower and a Young's modulus measured in accordance with JIS K7127 greater than or equal to five times that of the first soft sound-insulating layer within the range in which it can be deformed by vibration together with the sound-absorbing material,wherein at least the second soft sound-insulating layer is partially or entirely bonded to the second sound-absorbing material. 2. The sound-proof material according to claim 1, wherein the total of the basis weights of the first sound-absorbing material, the first soft sound-insulating layer, the second sound-absorbing material, and the second soft sound-insulating layer is 2,000 g/m2 or less. 3. The sound-proof material according to claim 1, wherein the second soft sound-insulating layer is made of a thermoplastic elastomer film. 4. The sound-proof material according to claim 1, wherein peripheral edges thereof are sealed. 5. A sound-proof molding obtained by molding the sound-proof material described in claim 1 into a three-dimensional shape. 6. A method for producing a sound-proof material comprising: a laminating step of laminating, on a first sound-absorbing material, a first soft sound-insulating film comprising a thermoplastic resin and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower, a second sound-absorbing material, and a second soft sound-insulating film comprising a thermoplastic resin and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower and a Young's modulus measured in accordance with JIS K7127 greater than or equal to five times that of the first soft sound-insulating layer within the range in which it can be deformed by vibration together with the sound-absorbing material, in this order, to obtain a laminate; anda bonding step of performing a heat process on the obtained laminate, to partially or entirely bond at least the second soft sound-insulating layer and the second sound-absorbing material with each other. 7. The production method of a sound-proof material according to claim 6, further comprising: a molding step of molding the laminate into a three-dimensional shape after the bonding step. 8. A method for producing a sound-proof material comprising: a laminating step of laminating, on a first sound-absorbing material, a first soft sound-insulating film comprising a thermoplastic resin and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower, a second sound-absorbing material, and a second soft sound-insulating film comprising a thermoplastic resin and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower, a second sound-absorbing material, and a second soft sound-insulating film comprising and a Young's modulus measured in accordance with JIS K7127 greater than or equal to five times that of the first soft sound-insulating layer within the range in which it can be deformed by vibration together with the sound-absorbing material, in this order, to obtain a laminate; anda bonding step of performing a heat-compression on the obtained laminate to mold into a three-dimensional shape and partially or entirely bonding at least the second soft sound-insulating layer and the second sound-absorbing material with each other. 9. A sound-proof method in which the sound-proof material described in claim 1 is disposed so that the first sound-absorbing material is in contact with the sound source.
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